我试图在opengl中绘制一个简单的行,我已经正确设置了environemt,并且在执行代码时我得到一个空白屏幕而不是行.
这是我的代码
#include "stdafx.h"
#include "freeglut.h"
#include <Windows.h>
#include <iostream>
using namespace std;
void reshape(int w, int h)
{
glViewport(0, 0, w, h);
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glutSwapBuffers();
glColor3f(1.0, 0.0, 0.0);
glPointSize(5.0);
glLineWidth(5.0);
glBegin(GL_LINES);
glVertex2d(0.0, 0.0);
glVertex2d(0.5,0.5);
glEnd();
}
int main(int argc, char* argv[]) {
// Initialize GLUT
glutInit(&argc, argv);
// Set up some memory buffers for our display
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH);
// Set the window size
glutInitWindowSize(800, 600);
// Create the window with the …